ON BRITISH ARACHNID A. 55 



Thyreosthenius biovatus, Cambr. 



Adults of both sexes of this curious little ant's-nest- 

 loving spider were received from Mr. H. Donisthorpe, 

 by whom they were found at Nethy Bridge, Inverness- 

 shire in May, 1909. 



Araeoncus aequus, sp.n. 



An adult female found with ants (Tetramorum ccesp- 

 tum) at Ram's Head, Cornwall, and sent to me by Mr. 

 H. Donisthorpe in April, 1909. This spider seems to be 

 nearly allied to Araeoncus longiusculus, Cambr., received 

 many years ago from Corsica ; possibly it may be the 

 female (with which I am not acquainted) of that species ! 

 It appears at any rate to be new to Britain. For fuller 

 description see postea (p. 69). 



Lophocarenum stramineum, Menge. 



Adult females were lately received from Mr. D. R. P. 

 Beresford, Fenagh, Ireland. Males of this spider were sent 

 to me from Ireland by Mr. Beresford in 1906. (See 

 Proc. Dors. N.H. and A.F. Club, XXVIII, p. 131.) 



Gen. NOTIOSCOPUS, Sim. (Arachnides de 

 France V., 2nd part, 1884, 

 p. 648). 



This genus was founded by M. Simon in 1884 (I.e. 

 supra) on a single species first described by myself in 

 1872 from a spider received from Nuremberg in Bavaria 

 from Dr. Ludwig Koch. 



Notioscopus sarcinatus, Cambr. 



Erigone sarcinata, Cambr., Proc. Zool. Soc., Lond., 

 1872, p. 757, PL Ixv., Fig. 13. Both sexes were found 

 among sphagnum in ditches on Eston Moor, Cleveland, 



